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Summary: Ctors | Methods | Inherited Methods

# RectEvaluator

`public class RectEvaluator`
`extends Object` `implements TypeEvaluator<Rect>`

java.lang.Object
↳ | android.animation.RectEvaluator

This evaluator can be used to perform type interpolation between `Rect` values.

## Summary

### Public constructors
`RectEvaluator()` Construct a RectEvaluator that returns a new Rect on every evaluate call.
`RectEvaluator(Rect reuseRect)` Constructs a RectEvaluator that modifies and returns `reuseRect` in `evaluate(float, android.graphics.Rect, android.graphics.Rect)` calls.

### Public methods
`Rect` | `evaluate(float fraction, Rect startValue, Rect endValue)` This function returns the result of linearly interpolating the start and end Rect values, with `fraction` representing the proportion between the start and end values.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
From interface `android.animation.TypeEvaluator`
`abstract Rect` | `evaluate(float fraction, Rect startValue, Rect endValue)` This function returns the result of linearly interpolating the start and end values, with `fraction` representing the proportion between the start and end values.

## Public constructors

### RectEvaluator

    public RectEvaluator ()

Construct a RectEvaluator that returns a new Rect on every evaluate call. To avoid creating an object for each evaluate call, `RectEvaluator#RectEvaluator(android.graphics.Rect)` should be used whenever possible.

### RectEvaluator

    public RectEvaluator (Rect reuseRect)

Constructs a RectEvaluator that modifies and returns `reuseRect` in `evaluate(float, android.graphics.Rect, android.graphics.Rect)` calls. The value returned from `evaluate(float, android.graphics.Rect, android.graphics.Rect)` should not be cached because it will change over time as the object is reused on each call.

Parameters
`reuseRect` | `Rect`: A Rect to be modified and returned by evaluate.

## Public methods

### evaluate

    public Rect evaluate (float fraction,
                    Rect startValue,
                    Rect endValue)

This function returns the result of linearly interpolating the start and end Rect values, with `fraction` representing the proportion between the start and end values. The calculation is a simple parametric calculation on each of the separate components in the Rect objects (left, top, right, and bottom).

If `RectEvaluator(android.graphics.Rect)` was used to construct this RectEvaluator, the object returned will be the `reuseRect` passed into the constructor.

Parameters
`fraction` | `float`: The fraction from the starting to the ending values
`startValue` | `Rect`: The start Rect
`endValue` | `Rect`: The end Rect

Returns
`Rect` | A linear interpolation between the start and end values, given the `fraction` parameter.

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